HD 135438
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (October 2010) |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 15h 14m 06.0436s |
| Declination | +31° 47′ 16.241″ |
| Apparent magnitude (V) | 5.999 |
| Characteristics | |
| Spectral type | K5 |
| B−V color index | 1.52 |
| Astrometry | |
| Radial velocity (Rv) | 4 km/s |
| Proper motion (μ) | RA: 42.18 mas/yr Dec.: -30.19 mas/yr |
| Parallax (π) | 5.57 ± 0.68 mas |
| Distance | approx. 590 ly (approx. 180 pc) |
| Absolute magnitude (MV) | 7.586 |
| Details | |
| Mass | 0.8 M☉ |
| Radius | 0.9 R☉ |
| Luminosity | 0.4 L☉ |
| Temperature | 3,500–5,000 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
| Database references | |
| SIMBAD | data |
HD 135438 is a star in double system in the constellation Boötes.